major spiral

• 大螺旋

major spiral的用法和样例：

例句

1. Grand spiral galaxies often seem to get all the glory, flaunting their young, bright, blue star clusters in beautiful, symmetric spiral arms.
   大螺旋星系似乎拥有所有的荣耀，不断炫耀他们对称旋臂中蓝色星团的年轻，明亮，及美丽。
2. Following its terrestrial namesake, the Tadpole Galaxy will likely lose its tail as it grows older, the tail's star clusters forming smaller satellites of the large spiral galaxy.
   和地球上同名的动物相似，随着蝌蚪星系年龄的增加，它的尾巴很可能也会消失，而位于长尾的这些星团，会聚集成这个大螺旋星系的小卫星星系。